OP- assuming you’re sticking with the .30 cal since you mentioned between 30-06 and 300 win mag. You can go 30-06 AI or a 300 wsm and download it a bit to achieve what you want. There really isn’t much offering of an in-between.
Or work with powders like R17 to achieve a little higher velocity. Maybe even use a longer barrel.
Or work with powders like R17 to achieve a little higher velocity. Maybe even use a longer barrel.